Improvement in whiffletree attachments



UNITED STATES JOHN C. GARNER, OF ASHLAND, PENNSYLVANIA.

IMPROVEMENT IN WHIFFLETREE ATTACHMENTS.

Specification forming part of Letters Patent N 0. 51,712, dated December26, 1865.

To all whom it may concern:

Be it known that I, JOHN G. GARNER, of Ashland, in the county ofSchuylkill and State of Pennsylvania, have invented a new and ImprovedWhiffletree and Double-Tree Attachment; and I do hereby declare that thefollowin g is a full, clear, and exact description thereof, which willenable those skilled in the art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure 1 is a transverse vertical section of myinvention, taken in the line an 00, Fig. 2; Fig. 2, a horizontal sectionof the same, taken in the line 3 3 Fig. 1.

Similar letters of reference indicate correspondin g parts.

This invention consists in attaching a whiffletree to the cross-bar ofthe thills or to a double-tree, and attaching a double-tree to thedraft-pole of a vehicle in such a manner that the connecting-bolt willbe relieved from all strain under the pull or draft of the team, and thebolt, as well as the whiffletree or doubletree, thereby prevented frombinding or breaking.

Arepresents the crossbar of a pair of thills, and B a whiffletreeattached thereto. On the cross-barA,'at about its center, there isplaced a metal plate, 0, which is fitted in a recess or groove madetransverselyin the bar, the plate extending the whole width of the barand having a lip, a, at its front end projecting downward to catch overthe front edge of bar A, and also a lip, b, which extends upward infront of the whiffletree more than half of the height of the latter, asshown clearly in Fig. 1. The plate also has a lip, a", at its rear end,as shown in Fig. 1. This plate and its lips may be of malleablecast-iron and all cast in one piece.

The inner surface of the lip 11 is rounded or of convex form, as shownclearly in Fig. 2.

The plate 0 is secured to the cross-bar A by means of a bolt, D, whichmay be of wroughtiron, and passes through said bar, the bolt having ashoulder, 0, upon it, which rests or bears upon the upper surface of Gand the lower part of the bolt underneath the cross-bar, havingscrew-nuts cl upon it. (See Fig. 1.) The bolt D passes up through thewhiffletree B and through a metal tube, E, which is of elliptical formin its transverse section, the major diameter being in a directiontransverse with the whiffletree. (See more particularly Fig. 2.)

To the front side of the whiffletree there is secured, by screws orotherwise, a metal plate, F, the exterior surface of which is convexin alongitudinal direction,as shown inFig.2. The whiffletree rests and turnsor works upon the shoulder c of the bolt, and is secured thereon by anut,- G, on the upper part of the bolt.

From the above description it will be seen that the whiffletree, underthe pull or draft of the team, will not bear upon the bolt D, butagainst the lip b of plate 0, the plate F at the front side of thewhiffletree bearing against said lip b. The elliptical tube E does notadm'it of the whiffletree bearing against the bolt 1), as will beclearly seen by reference to Fig. 2, said tube being sufficiently wideat its larger diameter to allow for wear of the lip b and plate F.

A double-tree may be attached to a draftpole in the same manner as abovedescribed, and the whiffletrees also attached to the double-tree in thesame way. The bolt D, it will be seen, is relieved from all strain, andthe whiffletree rendered stronger or less liable to break in consequenceof the bearing being against its front edge.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The plate 0, provided with the lips, as shown, andsecured to the barAbythe bolt D,in combination with the tube E, fittedin the whiffletree, and the plate F at the front side of the latter, thebolt D passing through the tube E, and all arranged to operate in themanner substantially as and for the purpose herein set forth.

JOHN G. GARNER.

Witnesses:

L. V. GARNER, JOHN LAZARUS.

